Poultry eviscerating tool



Dec. 12, 1950 l... FINNEY 2,533,445

POULTRY EVISCERATING TOOL Filed June 2, 1947 J v J? J] INVENTOR.

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ATTORNEYS Patented Dec. 12, 1950 UNITED STATES PATENT OFFICE POULTRYEVISCERATING TOOL Lawrence Finney, Georgetown, Ill.

Application June 2, 1947, Serial No. 751,919

3 Claims.

My present invention relates to the general class of butcheringimplements, and more specifically to an improved poultry evisceratintool or manually operated instrument for general use in the severing andremoval of internal organs. of various types of poultry or fowl.

The tool or instrument of my invention is made in Various sizes andshapes for use with the car casses of birds of differing sizes tofacilitate the drawing operations; and the primary object of theinvention is the provision of an instrument of this type that may behandled with facility, in accurately severing and removing from acarcass, the desired organs without material disruption of parts; andthe instrument may be maintained in clean sanitary condition for use insuccessive operations.

In carrying out my invention, the instrument is composed of a minimumnumber of parts that may be manufactured With facility at low cost ofproduction, and the parts assembled with convenience to insure a handytool that may be manipulated with rapidity and precision for theperformance of its required functions.

The invention consists in certain novel features of construction andcombinations and arrangements of parts as will hereinafter be describedand more specifically set forth in the appended claims.

In the accompanying drawings I have illustrated a complete example of aphysical embodiment of my invention in which the parts are combined andarranged in accord with one mode I have devised for the practicalapplication of the principles of my invention. It will however, beunderstood, as is evidenced by the modified form of the inventionillustrated in the drawings, that changes and alterations arecontemplated and may be made in these exemplifying drawings andmechanical structures, within the scope of my claims, without departingfrom the principles of the invention.

Figure 1 is a perspective view of an instrument embodying my inventionand especially adapted for use in the evisceration of the kidneys from acarcass.

Figure 2 is a face view of the instrument of Fig. 1.

Figure 3 is an edge view, partly in longitudinal section, of theinstrument; and

Figure 4 is an enlarged detail transverse sectional view at line 44 ofFig. 2.

Figure 5 is a perspective view of an embodiment of the invention in atool especially adapted for use in the evisceration of the lungs of acarcass.

Figure 8 is a transverse sectional view at line 8-8 of Fig. 6.

In both forms of the invention the tool is equipped with a metal shankor stem 5, and provided with a handle 2 of Wood or othersuitablematerial; and in the form of the invention illus trated in Figs.1 through 4 the shank is welded, or otherwise rigidly fastened at 3 to ablade 4 of stainless steel or other sanitary material. At its front edge5 the blade is ground or sharpened to form a rounded or curved knifeedge or cutting edge for the severance of tendons and other parts of thecarcass, and the rear end of the blade is rounded or curved to insurefacile rearward movement of the tool Without danger of catching onobstructions.

The front curved lip or cutting edge 5 of the blade may readily beinserted in cavities for severing and scooping up organs, as forinstance the kidneys, and the blade at its lateral edges is equippedwith serrated means for hooking or engaging and drawing tissues, tendonsetc. from the carcass.

For this purpose each lateral edge of the blade is fashioned with aseries of longitudinally extending and transversely spaced teeth orfangs each having a perpendicular edge 5 and front inclined or angularedge 1, the former for retaining the tissues and preventing them fromdisengagement with the tool while drawing, and the latter to facilitateself-cleaning of the instrument after evisceration of each successivecarcass. The front tooth 8 of each series of teeth is of lesser heightthan the remaining teeth, and it gradually merges with the roundedcutting lip 5 at the front edge of the blade to facilitate movements ofthe lip.

In the modified form of the invention in Figs. 5 through 8 the blade tis provided with the rounded and sharpened cutting edge or lip 5, andthe handle l at its junction with the blade is preferably offset as atIt to facilitate the use of the tool in eviscerating the lungs, andother organs of the carcass.

The blade 9 which may be dished or curved longitudinally is equippedwith a series of lateral serrations fashioned in its side edges, and thedouble-edge or pointed teeth I l of each series are separated by acomparatively wide space 12, the

' former for cutting or severing tissues, and the latter for hooking thetissues and drawing out the severed part, as for instance the lung. Insuch a procedure one series of teeth is placed against the lung andfastened thereto and then the tool is reversed as to position forsevering other tissues in the cavity, after which the severed part maybe withdrawn or removed with facility and cleanliness.

In a set of the tools, the smaller ones may be utilized in evisceratingthe carcasses of smaller birds, while the larger ones may be utilized ineviscerating the carcasses of larger birds, the selection and use of thetools depending upon the size of the bird or fowl, and the nature of theorgans to be withdrawn from the carcass.

From this description taken in connection with my drawings it will beapparent that I have devised a novel and useful tool that may bemanipulated by one skilled in the art with facility and rapidity in theperformance of its functions, and while the two forms of the invention,in actual practice produce satisfactory results, it will be obvious thatthese tools are susceptible to additional modifications within the scopeof my invention.

Having thus fully described my invention, what I claim as new and desireto secure by Letters Patent is:

1. An eviscerating tool comprising a flat plate with arcuate ends andhaving a centrally disposed back With laterally disposed spaced teethextended outwardly therefrom, one of the arouate ends of the platehaving a beveled cutting edge, and an off-set handle extended upwardlyand rearwardly from the end of the plate opposite to the end having thecutting edge thereon.

2. In an eviscerating tool, the combination which comprises a fiat platewith arcuate ends and having a centrally disposed back with lat erallydisposed spaced teeth extended outwardly therefrom, the width of thespaces between the teeth corresponding to the width of the teeth, one ofthe arcuate ends of the plate having a beveled cutting edge, and anoil-set handle extended upwardly and rearwardly from the end of the backof the plate opposite to the end having the cutting edge thereon.

3. In an eviscerating tool, the combination which comprises a flat platewith arcuate ends and having a centrally disposed back with laterallydisposed spaced teeth extended outwardly therefrom, the width of thespaces between the teeth corresponding to the width of the teeth, one ofthe arcuate ends of the plate having a beveled cutting edge, and anoff-set handle extended upwardly and rearwardly from the end of the backof the plate opposite to the end having the cutting edge thereon, saidhandle positioned in a plane slightly inclined in relation to the planeof the plate and the width of the teeth and the spaces therebetweenbeing sufiicient to permit ready removal of entrails of fowl.

LAWRENCE FINNEY.

REFERENCES CITED The following references are of record in the file ofthis patent:

UNITED STATES PATENTS Number Name Date 841,099 Anderson Jan. 15, 19071,236,369 Easby et al Aug. '7, 1917 1,421,397 Bruck July 4, 19221,706,403 Huot Mar. 26, 1929

